QualityLean

Standard Operating ProcedureSOP

A documented, step-by-step instruction for consistently performing a routine task or process.

A Standard Operating Procedure (SOP) is a documented set of step-by-step instructions for carrying out a routine operation the same way every time. It captures the agreed best-known method and is essential for training, compliance, and consistency.

SOPs are closely related to standard work — SOPs describe how to do a task, while standard work also ties the method to takt, sequence, and standard WIP. Both are living documents updated through kaizen.

Go Deeper
SOP Planning guide→Standard Work guide→
Related Terms
Standard Work
The documented current best method for a task, tied to takt time, sequence, and standard WIP — the baseline for improvement.
TWI
A set of structured supervisor skills — Job Instruction, Job Methods, and Job Relations — for training and improving work.
Kaizen
Continuous, incremental improvement involving everyone — from daily small ideas to structured multi-day events.
Poka-Yoke
Any device or design that prevents an error from being made or from becoming a defect.
Visual Management
Making the status of work, performance, and standards instantly visible so anyone can understand the situation at a glance.

Put Standard Operating Procedure into practice

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